I recently ran into a problem where my BB 7100g slows WAY DOWN. The only indication this is occurring is the rotating hourglass in the middle of the screen. Using the track wheel takes about 5 seconds per click to react (i.e. to go from "Messages" to "Browser"). I also can not accept or place calls, which makes this a total hassle. The last time it did this, the problem lasted about 2 hours and then operation went back to normal. I'm hoping it doesn't last that long again, but I'm currently at 30 minutes.